When you pay them as long as you use the mouse, they have a business reason to keep it working as long as possible (so to use batter switches) and sending you a new one when one breaks can still be profitable for them. Software updates are less important here.

I guess for end users it will still be cheaper and more convenient to buy a new regular mouse with a one-time payment after the previous one breaks. And that is how electro-trash piles up…

no idea why

Because it makes initial connection much slower. Dumb switch - you insert a cable ant the and it works. STP-enabled switch: you insert a cable and it takes a while until the port is enabled (unless you do extra configuration, appropriate for your network topology). This is annoying and for inexperienced users it could seem like the switch ‘does mot work’. It is easier to sell a switch without such a feature enabled by default.